Colt M1911A1 U.S. ARMY Serial Number 906471 (parkerized
finish) - Shipped March 23, 1943 to the Transportation
Officer, Springfield Armory in a shipment of 2,000 guns.
One of 106,171 model 1911A1 pistols produced with a
duplicate assigned serial number. It is speculated that the
duplication in serial numbers occurred as a result of
confusion during the rapid expansion of the ordnance
operations in 1941. At this time, small arms contracts were
transferred from Springfield Armory to the Office of Chief
of Ordnance (OCO). Springfield failed to notify the OCO of
previous serial number assignments. The serial number
blocks 801001 - 958100 and 1088726 - 1092896 has been
assigned to Colt and were recorded in their production
At the same time,. the OCO assigned the
following serial numbers blocks when they were under the
assumption that the high serial number assigned to Colt was
|856101 - 856404
||Field Service Depots
|856405 - 916404
||Ithaca Gun Company
|916405 - 1041404
|1041405 - 1096404
||Union Switch & Signal
G.H.D. ordnance mark below slide stop for Brig.
General Guy H. Drewry, Springfield Ordnance District, Army
Inspector of Ordnance, June 17, 1942 to July 15, 1945.
"P" Proofmark matches "P" on top of slide.
The "G" marking is for Government Production order.
Blued barrel - Left side of barrel marked
"COLT 45 AUTO" and "P" on lug.
Large "G" over "N" marked barrel. This marking appeared
from approximately 900,000 to 933,000.
Serial number under the firing pin retainer matches serial
number on the frame.
"P" proofmark on top of slide matches "P" proofmark on
Ordnance mark behind right grip to the right of the hammer
UNITED STATES PROPERTY, serial number and M1911A1 - U.S.